If not all of the variation seen in the human population can be attributed to natural selection, then what else could be most likely responsible for this variation?
A. neutral selection
B. sexual selection
C. founder effect
D. bottleneck effect
E. None of the answer options is correct.
B
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The tropical diseases such as African sleeping sickness, Chagas disease, and leishmaniasis are caused by
A. foraminifera. B. sporozoans. C. phytomastigotes. D. trypanosomes. E. oomycetes.
What is targeted therapy?
a. therapies that treat the whole patient as the target instead of just the diseased area b. chemotherapy that can have extreme side effects but often results in remission c. medicines designed to specifically target diseased cells without harming healthy cells d. pharmaceutical interventions that result in palliative care but not a cure
What is the name of the feeding organ used by most members of the Mollusca and how does it work?
What will be an ideal response?
A researcher returns from the Amazon River with 10 individuals of a species of fish and establishes a small breeding colony in her laboratory
She maintains the colony for several years (many fish generations), always maintaining the number of adult fish between 10 and 30. She notices that as generations of fish are bred, the reproductive rate decreases. What is the most likely reason for this? A) inbreeding depression B) increased genetic variability C) random mutations D) heterozygote advantage